Home / 58,139.25-87,176.07-20,170.71

Finding the Fourth Proportional to 58,139.25, 87,176.07 and 20,170.71

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Solution

The fourth proportional to 58,139.25, 87,176.07 and 20,170.71 is: 30,244.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,139.25 : 87,176.07 = 20,170.71 : x
  2. Step 2: Convert to fraction form
    58,139.25/87,176.07 = 20,170.71/x
  3. Step 3: Cross multiply
    58,139.25x = 87,176.07 × 20,170.71
  4. Step 4: Simplify right side
    58,139.25x = 1,758,403,226.91
  5. Step 5: Solve for x
    x = 1,758,403,226.91/58,139.25
  6. Step 6: Final answer
    x = 30,244.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.